infradian

      English

      Adjective

      infradian (not comparable)

      1. Cyclical with a periodicity significantly longer than 24 hours, that is, less frequent than circadian.

      Usage notes

      The comparative "more infradian" is not used, in contrast to the comparative "more ultradian".

      See also

      Last modified on 5 November 2007, at 16:54